Formatting a Speedometer Chart

[YuriyBaron]

Hi, I am looking for assistance in formatting a chart.
I have attached the excel file with the Speedometer Chart.
I would like numbers 5%; 10%; 15%; .... 100% to be on the outside of the outer ring. For some reason, I cannot select the "Data Table" option when selecting the graph or the Data Labels.
It would be even better if the numbers appeared at the intersection (of lighter and darker gray) of two colors.

The second has to deal with the "arrow". When formatting the data as a %, the arrow points to the correct section of the graph however the number beneath the arrow loses the decimal place.

Thanks.